Thermosensitive gold nanoclusters stabilized by well-defined vinyl ether star polymers: Reusable and durable catalysts for aerobic alcohol oxidation
Thermosensitive gold nanoclusters stabilized by well-defined vinyl ether star polymers: Reusable and durable catalysts for aerobic alcohol oxidation
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DOI：
10.1021/ja0735599
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发表时间：
2007-10-10
影响因子：
15
通讯作者：
Sakurai, Hidehiro
中科院分区：
文献类型：
--
作者：
Kanaoka, Shokyoku;Yagi, Naoto;Sakurai, Hidehiro
制备了粒径分布较窄的小于4 nm的Au纳米团簇，并将其负载到活性阳离子聚合得到的热敏性乙烯基醚星形聚合物中。星形聚合物的热敏性使得团簇可以很容易地从反应混合物中分离出来，而不会出现任何负聚集。因此，Au团簇可以多次回收重复使用，以在每次运行中诱导具有类似反应活性的醇氧化。
Au nanoclusters of less than 4 nm with a narrow size distribution were prepared and supported in thermosensitive vinyl ether star polymers obtained by living cationic polymerization. The thermosensitivity of the star polymers permitted easy separation of the clusters from the reaction mixture without any negative aggregation. Thus, the Au clusters could be recovered for reuse several times to induce alcohol oxidation with similar reactivity in each run.